989669424 has 160 divisors (see below), whose sum is σ = 2722325760. Its totient is φ = 309464064.

The previous prime is 989669413. The next prime is 989669431. The reversal of 989669424 is 424966989.

989669424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9079482 + ... + 9079590.

It is an arithmetic number, because the mean of its divisors is an integer number (17014536).

Almost surely, 2^989669424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989669424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361162880).

989669424 is an abundant number, since it is smaller than the sum of its proper divisors (1732656336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

989669424 is a wasteful number, since it uses less digits than its factorization.

989669424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 293 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 989669424 is about 31459.0118090190. The cubic root of 989669424 is about 996.5445482729.

The spelling of 989669424 in words is "nine hundred eighty-nine million, six hundred sixty-nine thousand, four hundred twenty-four".